ML 811K1

3-way-coaxial-loudspeaker with cardioid characteristic in bass range

With the ML811K1 a mastering loudspeaker was created combining maximal levels and absolute neutrality. For the first time mastering engineers have the opportunity to use a loudspeaker providing the same sound pattern Tonmeisters pledge to for decades. Special attention was directed to the necessities and conditions in mastering studios: large rooms and listening distances, high levels and neutrality.

ML 811K1

With the ML811K1 a mastering loudspeaker was created combining maximal levels and absolute neutrality. For the first time mastering engineers have the opportunity to use a loudspeaker providing the same sound pattern Tonmeisters pledge to for decades. Special attention was directed to the necessities and conditions in mastering studios: large rooms and listening distances, high levels and neutrality. Regardless of whether classical, rock, pop, or motion picture productions the ML811K1 overcomes loud and quiet passages with ease. Also in big living rooms or home cinemas it convinces with the accustomed ME quality.

By the cardioid radiation characteristics within the frequency range from 30 Hz through 250 Hz the reflections on the back walls of listening rooms can be minimized. In addition the transfer characteristic can be matched to the acoustical conditions of the reproduction room as well as to the set-up situation by the parametric filters of the integrated DSP.

The total directivity index of the monitor was optimized for long listening distances and a base distance between three and eight metres (9′10″ and 26′3″). For low frequencies a very linear 400 mm (16″) long-throw driver in a cardioid cabinet is employed, delivering excellent impulse fidelity. The four 25 mm (1″) dome tweeters are coaxially mounted in front of the 260 mm (10″) cone allowing a precise steering of the directivity index. As a result a realistic and steady spatial performance of the sound image around the listening position is achieved, with high homogeneity and smallest possible coloration. By the big diaphragm area the ML811K1 is to the highest degree level proof while at the same time it has the lowest distortions. Therefore the ML811K1 is a precision studio tool allowing fatigue free working for hours.

The RL-Amplifier is a 2 U rackmount Class-D amplifier driving the woofer with 1,500 W at 8 Ω and the midrange as well as the tweeters equally with 800 W at 4 Ω and therefore has sufficient power reserves for every situation.

A variety of special stands and racks is available as accessories. According fixing elements have been integrated into the loudspeaker cabinet.

General

Active three-way reference monitor for listening distances between 3 m (9′10″) and 8 m (26′3″)

Maximum SPL
from 100 Hz ... 6 kHz


118 dB ... 127 dB / r = 1 m (3′3″) (4 π)

Bandwidth

28 Hz ... 20 kHz ± 3 dB

Calibration:
Acoustic output level / PE = - 14 dBu


95 dB / r = 2 m (6′7″)

Directivity index
from 100 Hz ... 10 kHz


increasing from 5 dB to 14 dB

Inherent noise sound level

≤ 7 dB (A) / r = 1 m (3′3″)

Total harmonic distortion
measured at 100 dB / r = 1 m (3′3″)
from 100 Hz ... 10 kHz



≤ - 45 dB

Nominal input level

+ 6 dBu (adjustable)

Input impedance

≥ 10 kΩ RC balanced

Electronic crossover frequencies

550 Hz und 2.1 kHz

Nominal output power of the amplifier

LF
1,500 W / 4 Ω
MF
800 W / 4 Ω
HF
800 W / 4 Ω

Input connector of the speaker

Neutrik Speakon NL8 MPR

Input connector of the amplifier

Analogue XLR 3F; optional XLR 3F AES EBU

Output connector of the amplifier

Neutrik Speakon NL8 MPR

Loudspeaker systems

Woofer
1x 400 mm (16″) cone
Mid-range unit
1x 260 mm (10″) cone
Tweeter
4x 25 mm (1″) dome

Operation indicator of the amplifier

Display blue

Level and clipping indicator

Green LED chain at amplifier / limiting red

Power requirements

85 V ... 265 V, 50 Hz ... 60 Hz

Power consumption

50 V A in standby
max. 1,100 V A at full load

Mains connection

Neutrik Powercon NAC3 MPA-1

Protection class

Protection class 1

EMV conformity

EN55103-1 Emission Class A
EN55103-2 Immunity

Temperature requirements

for use
+ 15°C ... + 35°C (59°F ... 95°F)
for storage
- 25°C ... + 45°C (- 13°F ... 113°F)
Humidity
45 % ... 75 %

Connection cable
Loudspeaker - amplifier

Speakon NL8
Standard length 3 m (9′10″); optional other lengths

Dimensions (W × D × H)

Loudspeaker
460 mm × 400 mm × 810 mm (18.2″ × 15.8″ × 31.9″)
Amplifier
440 mm (faceplate 485 mm) × 290 mm × 90 mm (2 HE)
(17.4″ (faceplate 17.4″) × 11.5″ × 3.6″ (2 U))

Weight

Loudspeaker
51 kg (112.5 lbs)
Amplifier
7.1 kg (15.7 lbs)

Design of the cabinet
Loudspeaker


MDF wood in ash black veneered; optional different veneers or colours
with lateral mounting; optional without lateral mounting
with handles; optional without handles

Floor bracket stand

  • Loudspeaker rotable mounted
  • Deliverable heights (Top edge loudspeaker): 1923 mm (75.7 in), 1713 mm (67.4 in), 1573 mm (61.9 in) and 1458 mm (57.4 in)
  • Base panel (W x D): 620 mm x 550 mm (24.4 in x 21.7 in)
  • Base panel and stabilisation panel veneered
  • Racks black powder-coated

Standard veneer ash black (RAL9005), optional veneers and optional colours

We offer our loudspeakers in standard veneer ash black (RAL9005) or for an additional charge in different optional veneers respectively optional colours. This website provides an overview on the optional veneer and lacquer styles. We are pleased to check if your desired individual veneer and colour can be realised.

Important information about deviations from sample pattern

Wood is a natural product. Even the most thorough manufacturing can result in deviations in colour or structure and is no cause for complaint.
Images are represented differently on every screen and hence not colour-proof.